There are already a few on there when you install it (Pacifica, Orbit, World travel, Kenmore, and an extra for 747's: Global Freightways).
Or, you could download them by searching Microsoft flight simulator x add ons. I've downloaded blue, and gold southwest planes, American and delta.
There is no need to buy Microsoft Flight Simulator X: Deluxe Edition as Microsoft Flight Simulator X: Acceleration contains everything from Microsoft Flight Simulator X: Deluxe Edition and more.
You cannot download Delta Airlines skins for all the aircraft. You have to download Delta Airlines skins for each aircraft individually. To find the skin for the aircraft you want, type "Flight Simulator X Delta Airlines", and the aircraft you want the skin for. Example: "Flight Simulator X Delta Airlines 737" or "Flight Simulator X Delta Airlines 747"
Flight Simulator X is by Microsoft, the full name is Microsoft Flight Simulator X.
Microsoft Flight Simulator X: 18 Microsoft Flight Simulator X: Deluxe Edition: 22 Microsoft Flight Simulator X: Acceleration (add-on): 25 Microsoft Flight Simulator X: Gold Edition: 25
No, Microsoft Flight Simulator 2004 add-on aircraft cannot be transferred to Microsoft Flight Simulator X.
No, you cannot use the add-ons for Microsoft Flight Simulator 98 in Microsoft Flight Simulator X.
Yes, you can get a Concord for Microsoft Flight Simulator X from websites that make add-on aircraft for Microsoft Flight Simulator X.
You cannot download Microsoft Flight Simulator X.
You can't get a car in Microsoft Flight Simulator X.
Microsoft Flight Simulator X happened in 2006.
Yes and no, there are aircraft carriers in Microsoft Flight Simulator X: Acceleration (add-on) and Microsoft Flight Simulator X: Gold Edition.
Yes and no, it doesn't come with Microsoft Flight Simulator X, but you can find the add-on from Microsoft Flight Simulator X add-on websites.